21303464

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{2251}}^1$

素因数の和:2290

約数の個数: 48

約数和(自身を含む): 49453920

約数和(自身を除く): 28150456

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 169, 182, 338, 364, 676, 728, 1183, 1352, 2251, 2366, 4502, 4732, 9004, 9464, 15757, 18008, 29263, 31514, 58526, 63028, 117052, 126056, 204841, 234104, 380419, 409682, 760838, 819364, 1521676, 1638728, 2662933, 3043352, 5325866, 10651732, 21303464]

約数ペア:

[(1, 21303464), (2, 10651732), (4, 5325866), (7, 3043352), (8, 2662933), (13, 1638728), (14, 1521676), (26, 819364), (28, 760838), (52, 409682), (56, 380419), (91, 234104), (104, 204841), (169, 126056), (182, 117052), (338, 63028), (364, 58526), (676, 31514), (728, 29263), (1183, 18008), (1352, 15757), (2251, 9464), (2366, 9004), (4502, 4732)]